n m m + - - x + - - 2 2 x
m + n/2 - x + m/x - 1*2
/ 2 \ -\-2*m + 2*x + 4*x - n*x - 2*m*x/ ----------------------------------- 2*x
-(-2*m + 2*x^2 + 4*x - n*x - 2*m*x)/(2*x)
2*m + n*x + 2*x*(-2 + m - x) ---------------------------- 2*x
(2*m + n*x + 2*x*(-2 + m - x))/(2*x)
2 -4*x - 2*x + 2*m + n*x + 2*m*x ------------------------------- 2*x
(-4*x - 2*x^2 + 2*m + n*x + 2*m*x)/(2*x)
n / 1\ -2 + - - x + m*|1 + -| 2 \ x/
-2 + n/2 - x + m*(1 + 1/x)